These cranes are big - over 1.5 metres tall when fully grown. That is taller than many of the children in your class. Their wings spread out to nearly 2.5 metres when they fly, and their slow, gliding wingbeats are unmistakable in the sky.
They eat by wading through marshes and shallow water. Fish, frogs, snails and shoots all go on the menu. In winter, when Korean wetlands freeze, the cranes still find food in the slightly-warmer wet rice paddies, where farmers sometimes leave grains behind for them on purpose.
Red-crowned cranes are famous for their 'dance'. When two cranes form a pair, they bow to each other, jump in the air, throw sticks and grass with their beaks, and call to each other - all part of saying hello. Pairs often stay together for many years.
In Korea, paintings and embroidery of red-crowned cranes are everywhere - on old screens, traditional pillowcases, even modern Korean banknotes. The crane is said to bring long life, so parents and grandparents have been drawing it for hundreds of years as a wish for the family.